Advanced Materials Research Vols. 1030-1032

Abstract: Butterflies mainly feed on flower nectar and juice of rotting fruit, carrion, or dung. To attract butterflies, we tested 8 fermented fruits and fish bait types in dry evergreen and secondary forest at Dong Phayayen-Khao Yai Forest Complex World Heritage, Thailand. Three replicates of each bait traps were hang in an open area from 6:00 a.m. to 6:00 p.m. once a month from May to October 2010. We found a total of 79 butterfly species (3,038 individuals). The average number of species and individuals were significantly different among bait types, months, and forest types (p<0.01). Fermented fish mixed with fermented pineapple attracted the most species (69 species) since it contained both sodium and amino acids, followed by fish sauce (49 species), fermented fish (46 species), pineapple (35 species), banana (26 species), papaya (17 species), watermelon (11 species) and beer (8 species), respectively. The most commonly attracted butterfly was Euploea core (427 individuals), followed by Euploea radamanthus (288) individuals), Caleta roxus (234 individuals), Parantica aglea (211 individuals), Tirumala septentrionis (123 individuals), and Prosotas gracilis (117 individuals), respectively. Therefore, fermented fish mixed with fermented pineapple is recommended as a bait to attract fruit-feeding butterflies in the tropic..

Abstract: Nowadays, agricultural non-point source pollution has become the main pollution source of water environment, especially for drinking water. Water sources protection has become a major problem in national economy and people's livelihood. Rural contiguous improvement project, including rural drinking water source protection, rural domestic sewage treatment, rural living garbage and livestock industry pollution treatment, can not only improve rural living environment, but also effectively reduce the non-point source pollution source of the water sources. A case study in north China showed that, after rural contiguous improvement, the amount of pollution source reduced significantly, so as to protect and improve the environmental quality of water source reserve effectively.

Abstract: Nowadays, developing circular economy and constructing circular society have become a trend in the world wide. The necessity of university buildings as leader of reducing GHG emission has become an issue of global concern. But there are few reports of CO₂ emission amount about the Chinese campus at present. In this research, we investigated different buildings of university campus in Beijing, and figured out CO₂ emission amount by using dynamic analysis of annual energy consumption.

Abstract: This article analysis the public buildings constitute and building energy situation, from the current and long-term considerations.According to existing public building energy efficiency, new-building public building energy efficiency, new energy development and utilization of new technologies,proposes the countermeasure to promote the development of public buildings energy efficiency in China.

Abstract: In this paper, plaster powder as net paste for fired common brick strength testing. It is low in intensity and solidified quickly which get the smooth surface of the brick samples. Using compression testing machine to test the brick samples compression strength, compared with the samples without net paste. The results showed that fired common brick which adding net paste has a more stable compression strength.

Abstract: Because of the high strength and sound stability, the cement stabilized base has been widely used in high grade pavement in China. But shrinkage cracking are easy to occur in the cement stabilized base. Under the repeating action of traffic loads and temperature loads, this kind of cracks are easy to propagate towards the asphalt surface, being called “reflective crack”. Shrinkage cracks are not normally avertable in the cement stabilized base, in contrast with a few wide cracks of broad spacing, numerous thin cracks of narrow spacing contribute little to the severe reflection cracking. On the basis of this thinking, the pre-cracking technique as a promising approach is brought forward. Several vibratory roller passes to the cement-treated base at a short curing stage, typically 1 to 3 days after placement, to create a fine network of cracks, which avoids the wide and/or long cracks and creates the ideal crack model. Comparing to wide cracking, the degree of the stress concentration resulting from thin cracking is by far mitigated. The Finite Element Method is used to predict the ideal crack model, and then the mechanical responses of the semi-rigid pavement of single wide cracking and net hairline cracking under vehicle loading are numerically simulated, simultaneously compared and analyzed. The simulation analyses indicate that the pre-cracking technique is a very useful tool to mitigate the reflective cracks.

Abstract: The paper introduces the application of prestressed anchors and soil nails support system in complex soil layer deep foundation pit engineering at Lanzhou region based on the deep foundation pit engineering in Gansu Provincial Hospital of TCM as the background and discusses its key technology. The effect shows that scheme of the design of foundation pit support engineering is reasonable and effective.The engineering meets requirements of design and environment.The monitoring results show that prestressed anchors can control the horizontal displacement and the change rate of slope′s vertical settlement effectively. The experience of engineering is significance for similar engineerings at Lanzhou region.

Abstract: a list of criteria subject to selection and decision of pile-foundation is produced. Beside general process of traditional method, AHP and FAHP, relation analysis is introduced. Relation analysis could effectively consider the preference criteria, which is in accordance with investors. The relation analysis process is implanted in traditional decision theory by reasoned formulas and matrices. Last process is revealed smoothly and operability.

Abstract: Seismic inversion methods include constrained sparse pulse inversion and band limit inversion, etc. Although resolution of the seismic inversion results is higher than seismic data, it does not identify thin interbedding sand body and confirm the development of reservoirs. In this paper, in A block of Indonesia adopted geostatistical inversion in reservoir prediction, which is a method of seismic inversion combining geological statistics simulation and seismic inversion. This inversion method can establish various 3D geological model with the same probability of rock properties and lithology and it obey all seismic, logging and geological data. Using statistical regularity and seismic inversion technique we can obtain more fine reservoir model and finally reach the purpose of identification of single thin sand layer.

Abstract: The safety of concrete structure can be evaluated by manual survey through the visible crack shown on structural surface, but the manual survey is costly and time-consuming. To improve this, a novel image-based crack length measurement is proposed. The method starts with getting time varying crack images by proposed inspection system. Then retrieve crack skeleton from crack images by pre-processing, and construct crack skeleton of tree structure. After getting crack trunk by pruning small edges from crack skeleton, the length of crack is figure out. This method can measure crack length automatically, which will make contribution to enhance the stability, durability and safety of concrete structure. The validity and accuracy of the proposed method was tested by an experiment using images of a real concrete surface.